Comedk
Electrochemistry
COMEDK 2024 Morning Shift
Match the chemical reactions taking place at the Anode of the cell with the correct cell in which the reaction occurs.
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| No. | Anodic reaction | No. | Cell |
|---|---|---|---|
| A | \( \mathrm{Zn}(\mathrm{Hg})+2 \mathrm{OH}^{-} \rightarrow \mathrm{ZnO}_{(\mathrm{S})}+\mathrm{H}_2 \mathrm{O}+2 e \) | P | Fuel cell |
| B | \( 2 \mathrm{H}_2(g)+4 \mathrm{OH}^{-} \rightarrow 4 \mathrm{H}_2 \mathrm{O}(l)+4 e \) | Q | Leclanche cell |
| C | \( Z n_{(S)} \rightarrow Z n^{2+}+2 e \) | R | Nickel Cadmium storage cell |
| D | \( \mathrm{Cd}_{(S)}+2 \mathrm{OH}^{-} \rightarrow \mathrm{CdO}_{(S)}+\mathrm{H}_2 \mathrm{O}(l)+2 e \) | S | Mercury cell |